Table 2. Prevalence and adjusted odds ratios (AOR) of clinician-reported ADHD diagnosis and percentage of stimulant use among 2.2 million continuously enrolled Medicaid-insured youth in California in 2009.
| N | % Prevalence | AORb | 95% CI | |
| ADHD diagnosis, N=47,364 | 2.1 | |||
| Race/ethnicity | ||||
| White | 16,560 | 5.0 | 1.00 | Reference |
| Hispanic | 17,281 | 1.2 | .35 | .34–.36 |
| Black | 7,849 | 3.4 | .64 | .63–.66 |
| Otherc | 5,674 | 2.3 | .38 | .37–.40 |
| Stimulant use, n=28,334a | 59.8 | |||
| Race/ethnicity | ||||
| White | 10,887 | 65.7 | 1.00 | Reference |
| Hispanic | 9,488 | 54.9 | .69 | .66–.73 |
| Black | 4,458 | 56.8 | .67 | .63–.70 |
| Other | 3,501 | 61.7 | .76 | .71–.81 |
a. Among ADHD diagnosed youth.
b. Adjusting for age-group, sex, and Medicaid eligibility group.
c. Alaskan Native, Asian, Pacific Islander or unknown race.